PuzzleTest

[Emral]

PuzzleTest is a... puzzle made in 2013 by Test_Runner. It's hosted on pastebin and, as far as I know, has 20 pages. Maybe there are more,I never got as far.
The puzzle starts here, if anyone wants to give it a try: http://pastebin.com/Z5XMRsWf

Put any information and discussion about pages and questions about how to solve xx or what's gone wrong on page yy please in a spoiler like this (to avoid ruining the fun for other people trying it out):
Spoiler for *Pastebin Title*

Spoiler: show

Alright so I did this and that, can I get a hint. / Wow, *page* was super obscure.

Have fun.

[underFlo]

I got through the first puzzle, but I'm clueless afterwards.

[Emral]

Hint for Page 9

Spoiler: show

The title of page 9 is made up of titles from the previous 8 pages.

[Emral]

Hint for page 3:

Spoiler: show

Looks the same like pages 1 and 2. 1-letter title, and pasrebin link as text.

[Emral]

Hint for page 3:

Spoiler: show

Looks the same like pages 1 and 2. 1-letter title, and pasrebin link as text.

I don't see a title for the pastebin

Spoiler: show

Page 1 is N
Page 2 is Z
Page 3 is r